"""
Case Type   : 操作系统类-文件系统故障
Case Name   : switchover时，新主机注入故障文件系统inode资源耗尽
Create At   : 2021/7/30
Owner       : @wan005
Description :
    1、新主机注入文件系统inode资源耗尽故障
    2、备节点上执行gs_ctl switchover
    3、清理故障
    4、执行TPCC
    5、检查数据一致性
    6、恢复环境
Expect      :
    1、故障注入成功
    2、switchover成功
    3、清理故障成功
    4、执行TPCC成功
    5、数据一致
    6、恢复环境
History     :
    Modified by @wan005 2021/12/9: 优化用例增加故障注入耗时
"""
import time
import unittest

from testcase.utils.ComThread import ComThread
from testcase.utils.Common import Common
from testcase.utils.CommonSH import CommonSH
from testcase.utils.CommonSH import RestartDbCluster
from testcase.utils.Constant import Constant
from testcase.utils.Logger import Logger
from yat.test import Node, macro


class ReliabilityFileSystem(unittest.TestCase):
    nodes = ("PrimaryDbUser", "Standby1DbUser", "Standby2DbUser")

    @RestartDbCluster(*nodes)
    def setUp(self):
        self.log = Logger()
        self.primary_sh = CommonSH(self.nodes[0])
        self.sta1_sh = CommonSH(self.nodes[1])
        self.primary_root_node = Node(node="PrimaryRoot")
        self.sta1_root_node = Node(node="Standby1Root")
        self.sta1_node = Node(node="Standby1DbUser")
        self.constant = Constant()
        self.com = Common()
        self.log.info("setUp-实例化:ok")

        self.log.info("Opengauss_Reliability_OS_File_System_Case028:开始执行")
        self.file_name = macro.DB_INSTANCE_PATH
        self.inject_cmd = f"rfile_ideplenish_workmode " \
                          f"(filename, workmode) " \
                          f"values ({self.file_name}, fore)"
        self.clean_cmd = f"rfile_ideplenish_workmode where " \
                         f"filename={self.file_name} and workmode=fore"

    def test_main(self):
        try:
            text = "--step1:主节点注入文件系统inode资源耗尽故障;expect:成功"
            self.log.info(text)
            self.log.info("注入故障")
            session = ComThread(self.com.cfe_inject,
                                args=(self.primary_root_node,
                                      self.inject_cmd))
            session.setDaemon(True)
            session.start()

            session.join(60 * 30)
            result = session.get_result()
            self.log.info(result)
            self.assertIn("successful execution", result, "执行失败" + text)

            text = "--step2:备节点上执行gs_ctl switchover;expect:成功"
            self.log.info(text)
            result = self.sta1_sh.executeGsctl("switchover",
                                               "switchover completed",
                                               get_detail=True)
            self.log.info(result)
            self.assertNotIn("No space left on device", result, "执行失败" + text)
            self.assertIn("switchover completed", result, "执行失败" + text)

            status = self.sta1_sh.exec_refresh_conf()
            self.assertTrue(status, "执行失败" + text)

        finally:
            text = "--step3:清除故障;expect:成功"
            self.log.info(text)
            result = self.com.cfe_clean(self.primary_root_node,
                                        self.clean_cmd)
            time.sleep(60)
            self.log.info(result)
            self.assertIn("successful execution", result, "执行失败" + text)

        db_status = self.primary_sh.getDbClusterStatus("detail")
        self.log.info(db_status)
        self.assertTrue("Degraded" in db_status
                        or "Normal" in db_status, "执行失败" + text)
        self.assertTrue("S Primary" in db_status
                        and "P Standby" in db_status, "执行失败" + text)

        text = "--step4:运行TPCC;expect:成功"
        self.log.info(text)
        result = self.com.startTPCC(self.sta1_root_node, macro.TPCC_PATH)
        self.log.info(result)
        self.assertIn(self.constant.TPCC_SUCCESS_MSG, result, "执行失败" + text)

        self.log.info("检查主备是否同步")
        time.sleep(10)
        self.log.info("获取节点数量")
        node_num = self.sta1_sh.get_node_num()
        res = self.sta1_sh.check_location_consistency("primary", node_num)
        self.assertTrue(res, "执行失败" + text)

        text = "--step5:检查数据一致性;expect:成功"
        self.log.info(text)
        nodes = (Node(self.nodes[0]), Node(self.nodes[1]),
                 Node(self.nodes[2]))
        flag = self.com.check_data_sample_by_all(r'\d', *nodes)
        self.assertTrue(flag, "执行失败" + text)
        table_dict = self.com.format_sql_result(
            self.sta1_sh.executDbSql(r'\d'))
        table_name = table_dict.get('Name')
        for name in table_name:
            select_sql = f"select count(*) from {name};"
            flag = self.com.check_data_sample_by_all(select_sql, *nodes)
            self.assertTrue(flag, "执行失败" + text)

    def tearDown(self):
        text = "--step6:环境清理;expect:成功"
        self.log.info(text)
        res = self.com.cfe_clean(self.primary_root_node,
                                 self.clean_cmd)
        self.log.info(res)
        self.log.info("故障已清理")

        db_status = self.primary_sh.getDbClusterStatus("detail")
        self.log.info(db_status)
        if "S Primary" in db_status or "P Standby" in db_status:
            result = self.primary_sh.executeGsctl("switchover",
                                                  "switchover completed",
                                                  get_detail=True)
            self.log.info(result)
            status = CommonSH(self.nodes[0]).exec_refresh_conf()
            self.log.info(status)
        db_status = self.primary_sh.getDbClusterStatus("detail")
        self.log.info(db_status)
        self.assertIn("successful execution", res, "执行失败" + text)
        self.log.info("Opengauss_Reliability_OS_File_System_Case028:执行完成")
